Silo construction.



C. H. SNOW Sn.

SILO CONSTRUCTION.

APPLICATION FILED NOV. 111.1914.

1,210,716. Patented Jan. 2,1917. /3 2 SHEETS-SHEET C. H. SNOW SR.

SILO CONSTRUCTION.

APPLICATION FILED NOV. 18, 1914- 1,210,716.

Patented Jan. 2, 1917.

2 SHEETS-SHEET 2- me/wboq/ 0 H800 n,

si'Lo con'smnur'ionl specification of Letters men.

Patented Jan. 2, 191?.

Application fi'l-edNovem-b'er 18,1914. Serial at. 872,767.

To all whom it may concern:

Be it known that I, CLYDE- SNow, Sn, a citizen of the United States, residing at Mason, in the county of Ingha-m. and State of Michigan, have invented certain new and useful Improvements in Silo Constructions, of which the following is a specification.

The invention has for an object to give an improved construction of silo which will be easily erected, inexpensive and eflieient, as well as durable. It is" especially important purpose to give asilo of; such structural parts thata special; sc'afiolding will not require to be erected around, the, structure-,-but will enable the support of platforms directly upon the silo while in course of construction without adding tothe thickness of the-material beyond what'is required for its normal use. Another important object is to present a construction which may beadaptedwithoutchange to the erection of various sizes of silos requiring no special sizes; of parts for the wall erection.

Additional objects,- advantages and features of invention will appear from the construction, arrangementand; combination of parts hereinafter described Y and shown in the; drawing, wherein- Figure l is an elevation of one embodiment of my invention, Fig; 2 is a detail of rib structure, Fig.3 isa detail of the door, Fig. 4 is a cross section ofthe silo, Fig. 5 is a detail section at-the doorway, Fig. 6 is a detail elevation of the door support, Fig. 7 is a-detail of one of the lugs on the ribs, Fig. 8' is a detail of a rib end, partly in' section. I

There is illustrateda-silo comprisinga number of vertical ribs 10, which may be formed in sections superposed end on' end, and comprising; a body portion 11 of wood or other material having a rounded convex outer side, in the present instance faced with a plate 12 secured thereto in a suitable manner, The ribs are slightly wider at their outer sides than at their inner sides, and are formed with recessed lateral faces. rounded and faced with sheet metal 18, forming grooves 14 for the reception of the ends of the panel sections 15 superposed edge to edge and fitted snugly between the, ribs whereby they are securely held against displacement. The sheet metal groove facings 13 project above the upper ends of the rib sections, and in the upper sections stop short of the lower ends of the body portions 11, whereby a scarf is formed by which the joints are greatly strengthened. At each side of the plate 12 a series of vertically spaced lugs 17 are formed having horizontal transversely oblong openings 18 tl1erethrough the sides of the lugs toward the middleof the plate being slightly convex. The ,major transverse H dimensions, of the openings 18 are in a horizontaldirection. (See Fig. 7.) Also spaced longitudinally ofthe' plates 12 there are vertically apertured lugs 19 having small notches 21 centrally across their, upper edge portions. Two ribs are used for the door frame, one of which is formed with a door engagingv edge 22- ogee-sha-ped incross section extending in themean away from the door opening toward the interior of the silo and forming a concavity in the frame at the inner edge part, this one being located adjacent the pivoted side of the door. I There are pro vided asuitable number of door sections 23 having one rounded edge adapted to fit snugly in the grooved rib atone side, while the opposite side is shaped to correspond to, andfit snugly in, the ogee-shaped edge of the remaining door frame piece. These door sections are preferably built of a number of narrow strips of board of suitable thickness, forming two layers, those at one side being arranged vertically while those atthe opposite side extend horizontally. The top and bottom edges of the door are planiform, and horizontal. The upper part of each door is fitted with a spring plate 24, secured on the inner face of the door, bent abruptly over the top edge and extending outwardly beyond the front face of the door, with a slight upward inclination. The outer edge portion of the plat e is curved downwardly as at? 25. Fixed upon each door near its right hand side, there is a pair of pivotoblock's 26 on which, are pivotally secured the endsofaforked arm 27,the outer end of which carries a barrel 28 pivoted between the forks of an H-shaped link 29, the opposite end of which is pivoted upon a lug '30 fixed on the plate 12 at the adjacent side of the door. clined laterally at the inner side, so that with the rounded edge of the doors set in the groove 14 at the far side the opposite edge of the door may swing to a snug seat against the correspondingly shaped door frame. WVith the door in this position the link29 lies close back adjacent the plate 12 and away from the door, while the arm 27 lies closely thereover. The barrel 28 will thus serve asa handle by grasping which and drawing it outwardly a considerable leverage is exerted by which the door may be cleared from the adjacent side of the frame and then swung inwardly. The door is then 'ven a sliding movement to the right an its left hand side pressed inward until it swings to the position dotted at b in Fig. 5, the initial movement being indicated at a in the same figure.

The door sections are provided with ladder pieces 31 spaced was to form with the tie bars 32 a continuous series of equally spaced rungs. These tie bars are .provided with right and left threads at respective ends, and are threadedinto suitable lugs 33 on the plates 12 at the sides-.of the door. They are utilized to draw the sides ofgthe door frame together upon the doors when closed, and may also beloosened to free the doors for opening. 'Any' other well known method may be used to draw the frame together on the bars 32, such for instance as the connections with the rods 34 hereinafter described.

The ribs 10 are equally spaced around the silo, and the panel sections therebetween comprise board sections of proper length and thickness having rounded ends fitted snugly in the grooved sides of the ribs. It is to be noted however that the arc of the groove is such that the panels may be adjusted in various angular relations to the mean planes of the ribs without the edges of the ribs striking the inner or outer sides of the panels. Between the ribs 10 over the panels 15 there are engaged short tie rods 34, which may be sm'allerthan the rods 32, or of the same size, as found convenient. The rods 34 are inserted slidably through the openings 18 in the lugs 17, and have nuts 35 engaged on their ends against the inner convex sides of the lugs.

In the erection of the silo, a suitable foundation is provided upon which the ribs are set up in proper position and connected by the tie rods 32 and 34 so as to be held loosely in position, after which the panels 15 are a put in place and the lowermost tie rods tightened somewhat. As the placing of the Therside of the, door is ink;

A series of the brackets is mounted on the ribs atthe same level, and boards 38 laid across them as shown in Fig. 4 to provide a platform, which will be ample for the needs of the work. The outer ends of the brackets are provided With-"small pins 39 on the upper'side, by which the boards are revented from slipping off the brackets. (J ertain of the lower lugs 19 may beutilized to secure stay rods 40, anchored in the foundation in 3 a suitable manner and having their upper ends inserted upwardly through the lugs and secured by nuts 41.

r The roof 42' may be of any suitable com struction, the details of which it is notnecessary to disclose herein.

It will be apparent that by the use of the ribs and transverse anels therebetween, the

construction of a s1 0 may be accomplished rapidly and without special mill work in different sized structures; also, the expense of staging is eliminated by the use of the brackets 36.- The securing of the parts in position aserected is also simplified,'and the small tie rods 'may' be-easily handled and utilized to secure the parts in position much sooner than the usual hoops can be. The same sizes of ribs and panels are usedfor different sized silos, itbeing-only necessary to increase or decrease the number ofribs used. 7 The properalinement of the ribsmay be assured by an equal tightening of the nuts on the rods 34. The tie rods 34, the ribs and the interposed panel pieces form a truss work, by which the walls are made very Y rigid and, resistant to lateral deformation. That is to say, that the liability of local bulging which occurs in a great many silos built of segmental staves'held by hoops, will not be present in a device constructed inaccordance with my invention. These tie rods 34 also may be used as ladders at:any point around the silo-when it .is "necessary to tighten up the nuts on the rods.

What isv claimed:

A silo made up of vertical rib sections which have longitudinal grooves upon the opposite edges, concaved plates seated in said grooves-and projecting beyond the ends of said ribs, the outer faces of the ribs being convexed and wider than the inner face s thereof, convexed plates secured to the outer convexed faces of said ribs, lugs projecting from the opposite edges of said convexed plates and having transverse apertures therein, rods passing through said apertures, nuts In testimony whereof I have aflixed my upon the rods and bearing against the lugs, signature in presence of two Witnesses.

superimposed panel sections having con- CLYDE H. SNOW, SR. vexed ends engaging the concaved plates in Witnesses:

5 said grooves, and a roof fitted over the up- H. H. HAMILTON,

permost of said panels and ribs. E. S. HARRIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

